西安电子科技大学学报（自然科学版）2012，Vol.39Issue(1)：38-41,4.DOI:10.3969/j.issn.1001-2400.2012.01.008
MOM-PO混合方法中一种遮挡消影的新算法
New method for removing the hidden face in the MOM-PO hybrid method
摘要
Abstract
It is necessary to judge the lit region and the shadow region in the PO area when we use the MOM-PO hybrid method. This paper proposes a highly efficient method to complete this hidden face removal. First of all, it divides all the triangles in the geometric model into groups by the commonly-used Z-Buffer method, thus decreasing the time-expenditure. And then a strict method is adopted to find the lit triangles with high accuracy. Finally, we apply the domain decomposition method to decrease the memory requirement. A numerical experiment shows this new method can obtain a more accurate result than the Z-Buffer method by 18. 6% at the expense of only a little more time and memory.关键词
矩量法/物理光学/遮挡消影/区域分解Key words
moment methods/physical optics/hidden face removal/domain decomposition methods分类
信息技术与安全科学引用本文复制引用
党晓杰,袁浩波,王楠,梁昌洪..MOM-PO混合方法中一种遮挡消影的新算法[J].西安电子科技大学学报（自然科学版）,2012,39(1):38-41,4.基金项目
国家自然科学基金资助项目(61072018,60901030) （61072018,60901030）
中央高校基本科研业务费资助项目(JY10000902002) （JY10000902002）
